Tap for washstands for cold and hot water and for mixing them



FOR COLD AND HOT WATER AND FOR MIXING THEM TAP foa WASHSTANDS Filed July 50, 1926 i row F through the named ca. 15, 1929 PATENT OFFICE J'ULIEN ALBERT LEMETAIS, OF PABIS, FRANCE TA? l'OB'lWA-BHSTANDS FOB GOLD AND HOT WATER AND FOR Application filed July 80, 1926, Serial No. The present invention refers to taps for v wash-stands-furnishing cold andhot water or any mixture of them. This tap, presenting itself in the form of an ordinary tap for 5 wash-stands, is especially arranged to distribute cold or hot water or a mixture of them of a mathematically exact temperature and to replace the two generally used cocks for cold and hot water by a single one.

Among other applications this tap can be place in one of the holes provided in all patterns of hand-basins, of porcelain, of general use. v

This tap presents also the advantage of avoiding, due to its distributionof water at a predetermined temperature, the wasting of hot water. y,

The drawings appended illustrate one executional mode of the tap,

On the drawings: Figure 1 is a vertical axial section through this tap;

Figure of water; Figu res 3, 4 and 5 show the diiferent phases of working, and

Figure 6 re resents a somewhat different arrangement of the inner parts of the cook.

The tap issimilar in appearance to ordinar wash-stand taps, comprising a body having a discharging spout and a threaded shank a for attachment of the tap to the basin and for its connection with piping.

Hot water arrives, as indicated by the arscrewed concent cally in the interior of the shank of the tap.

When mounting the cock, care should be taken to place the upper edge of this tube at the same level as the ordinary seat 7, ap-

ertainin to taps of this kind in order to orm, in t is manner, two seats concentrically dislposed with regard to each other. valve g, integral with ascrew-threaded the head of the tap, may

stem g mounted on and closing the water be actuated for opening passage.

Cold water uated between the exterior of the central tube y reascen 2 shows a sleeve for thedistribution nozzle d of a central tube 6 f at the head of the central tube enters the annular space It sit-f On continuing mxme rum 125,994, and in Belgium August 5, 1925.

tap, a union 1', of special form, being provided for this purpose; cold water entering the same as indicated by the arrow F. annular space j'is provided in this union and permits the passage of water through the aperture is provided in the shank of the tap in every position of the piece.

In order to regulate the distribution of cold or hot water or of a mixture of them at any predetermined temperature,-a sleeve Z of special' form is provided, having two cylindri cal parts Z, l connected by a conical part 1 and sliding freely on the outer surface of a centrally disposed tube e. Openings m are provided in this sleeve in order to permit the pasfiage of hot water through its annular wa This sleeve is placed on a spiral spring n and compresses the latter during its downward stroke, the sleeve being pushed by the valve giif the tap is being closed; the sleeve g with the alve', being pushed by he spr ng, in order to distribute more or less hot water. p 1

V In order to prevent,- during the distribution of hot water alone, (Fig; 5), cold water passing between the sleeve and the central tube, a series of packing rings 0 are provide on the latter, the sleeve itself having, in its lower part, a washer of plastic substance p of a' diameter sli htly greater than the annular aperture q or the purpose of preventing'a mission of cold water during the distribut on of hot water alone;

The central tube e on which the sleeve is slidable, permits an easy adjustment of the sleeve with great exactness, previous to inserting the tube in hich place in the tap, w exactness is absolute y absent in a tap cast in one piece",

- The workinglof the tap is as follows:

On lifting t e valve g, when the screw g is operated the sleeve Z, pushed by the spr ng '1, ascends with it and cold water, assing into the annular space q is discharge alone, the upper part of the sleeve and the valve reventing hot water (see ig. 3).

the movement, the orifices the sleeve, are uncovered the dischargeof (Fig. 4) and hot water is permitted "to flow having apertures and also having a conical out, whereby a mixture of cold and hot waportion to progressively close said annular ter of a suitable temperature is obtained. space as said sleeve ascends, a valve to close This temperature increases in proportion said annular space from above, manually opas the sleeve ascends along the central tube, erable means to actuatesaid valve and a the conical part of this sleeve diminishing sprirg to move the sleeve upward. progressively the passage of cold water until 3. In a tap for hot and cold water and for the disc 1) closes completely on its seat in mixing them, an inner conduit for hot waorder to permit discharge of hot water alone ter, a concentric conduit for cold water, a

m (Fig. 5). valve, an annular space between said con- According to a modified form of the tap duits, a sleeve on said inner conduit, a spring as shown in Figure 6, the body of the tap itto move said sleeve with said valve, tightenself presents two nozzles, the nozzle 7" for ading means between said sleeve and said inner misslon of hot water, and the nozzle 8 for adcc "iduit, means on said sleeve to close said anmission of cold water, these nozzles being nular space, apertures in said sleeve to espreferably disposedhorizontally in a plane tablish communication between said sleeve, perpendicular to one of the discharging nozthe inner conduit and the discharge in the zles b and directed in opposite directions. highest position of the sleeve, a horizontal The nozzle r communicates with the cenannular chamber for admission of cold wa- 20 tral tube 6 while the nozzle 8 communicates ter and means to effect admission of water with the annular passage A stopper 6 disfrom said chamber to the outer central conposed in the lower part 0? the body, permits duit in any position of the chamber. access to the interior of the parts. 4. A tap for hot and cold water compris- The working of the tap is the same as in ing a body having a tubular portion, a hot 25 the construction first described; the distribuwater inlet tube threaded in the lower end tion of water being effected by the sleeve Z. 1 of said tubular portion of the body and of Furthermore, the mounting of the tap can less diameter than said tubular portion so be effected without any difficulty, and all its .that an annular space for the passage of cold parts are accessible and easily replaceable water is formed therebetween, a cold water 30 when worn, inlet union secured to the inlet end of said The working of the apparatus is very eftubular portion of the body and establishfective', it being understood that by the siming communication with the annular space 'ple displacement of the movable sleeve, hot therein, the said body having a partition and cold water are mixed in a well deterprovided with an opening through which the 35 mined proportion at a suitable temperature. upper end of said hot water tube extends, a It is obvious that the described and reprevalve to close downwardly on said partition sented devices permit their application to and on the upper end of said hot water tube, all kinds of taps or cocks and for all usages, a sleeve fitted snugly on said hot water tube, in a very advantageous manner, the applicamovable vertically thereon and having open- 40 tion of this tap to a wash-stand being given ings near its upper end and also having a here as one example only of one of its posconical portion to progressively close the sible uses. opening in the partition as said sleeve ascends What I claim is: and a spring to move said sleeve upwardly. 1. In a tap for cold and hot water and for In witness whereof I aifix my signature. 45 mixing them, a central conduit in the body JULIEN ALBERT LEMETAIS.

of the tap, for admission of hot water, a concentric and separate conduit within said central conduit, for admission of cold water, a sleeve movable on said inner conduit in an 50 annular space between said conduits, a spring to push this bush upwardly, a valve to close said annular space, apertures in said sleeve to establish communication between the interior of the inner conduit and the discharg- 55 ing nozzle in the raised position of the valve 129 and of the sleeve and shoulders on said sleeve to close the said annular space when said sleeve is in its position to permit discharge of hot water alone. 2. In a tap for cold and hot water and for mixing them, a central conduit for cold water, a conduit for hot water separate there- X from and concentric with the same so that arr-annular space is formed therebetween, a sleeve movable on the inner conduit and 130 

